CHALKLEY

Operated by OLSEN ENERGY INC. (P-5 621750) in the LEHN-APCO, S. (WICHITA-ALBANY) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Gas lease lease 158056District 08Field 53010500Hydrogen sulphide fieldCondensateGasSaveExport
Value, all time
$3.1 M
Mar 1996 – Dec 2016
Value, last 12 filed months
$32 k
at the published price for each month
Months reported
250
no gaps in the span
Streams
2
condensate, gas

The Railroad Commission's own record for the field this lease produces from, including the spacing rule that governs how close together its wells may be drilled.

These are facts about the field, not about this lease. The field holds 31 leases and 36 wells, and the rule below applies to all of them.

Discovered
1977-07-05
as the register files it
Field class
Oil and gas
the register's own label
Between wells
1,200 ft
minimum
From a lease line
467 ft
minimum

A drilling unit in this field needs at least 40 acres. The field rule took effect on 1992-12-14.

The register flags this field for hydrogen sulphide. That is a poisonous gas that occurs naturally in some formations. The flag is a property of the field as the Commission records it. It is not a measurement taken at this lease, and it is not a statement that gas is escaping anywhere.

The Commission's schedule remark for this field reads: TO 4645'

What this lease produced, and what it was worth

Oil and condensate are valued on the volume the state records as disposed of; gas and casinghead gas on the volume produced. They are different columns of different files, and the difference is not cosmetic.

StreamBasisVolumeValue
CondensateDisposition1,005 bbl$68,047
GasProduction977,138 Mcf$3,067,395
Total$3,135,443

168,130 Mcf of this lease's gas, across 10 months, carries no value here. No free Texas wellhead gas price exists before 1997, so those months are left out of the total rather than valued at zero. The total above is therefore a floor, not an estimate.

Wells on this lease (1)

Every wellbore the Railroad Commission records against this lease key, with the depth, the last completion and the plug date exactly as filed. A well with no plug date is not stated to be producing — the state files no such flag.

These wells centre on 31.1102, -102.6815. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.0 miles.

31.11017, -102.68146 · centre of the wells drawn, derived

What these wells add up to

Every figure below is counted over all of this lease's wells, not over the rows listed above. The Railroad Commission files two facts about a well's state — a plug date and a proration-schedule flag — and a well can carry both, so they are published as separate counts and never merged into a status.

On the schedule
100.0%
1 of 1 wells
With a plug date
0.0%
0 of 1 wells
Median depth
4,715 ft
1 wells filed one
Completion to plug
no well filed both dates

What the state filed about each well

On the RRC proration schedule
1100.0%
A plug date is filed
00.0%
BothOn the schedule and plugged. Neither fact cancels the other.
00.0%
NeitherNo plug date, and not on the schedule.
00.0%

A plug date is the date the Commission recorded the wellbore as sealed with cement and abandoned. It is the only end-of-life fact Texas files. There is no "active" flag on a well, so this page does not print one — a well with no plug date is not stated to be producing.

How deep they were drilled

The one well that filed a depth was drilled to 4,715 ft.

Completions filed
Dec 2016
1 of 1 wells

1 well

42-3713239334,715 ftDec 2016Yes

The API number is the state's, prefixed 42 for Texas. A well is matched to this lease by the lease key the Commission files on the wellbore record, so a well that has moved between leases appears under each one it was filed against.

Every month this lease reported (250)

Volume × price = value, one row per cycle. The price columns are the same series published on the prices page — nothing here is modelled.

250 months

Dec 2016104048.763.72$5,071
Nov 20164812142.492.64$2,359
Oct 201601,41246.193.09$4,363
Sep 20165033041.553.10$3,101
Aug 201601,41341.442.92$4,132
Jul 201601,44241.622.92$4,217
Jun 201601,41245.352.69$3,792
May 2016066542.521.99$1,324
Apr 2016015036.561.99$299
Mar 2016050733.011.79$910
Feb 201605326.472.06$109
Jan 201601,11127.352.36$2,627
Dec 2015451,17232.362.00$3,802
Nov 201501,08138.792.17$2,343
Oct 201501,18943.552.43$2,885
Sep 201501,17242.992.76$3,233
Aug 201501,19140.162.87$3,421
Jul 201501,29748.152.95$3,820
Jun 201501,27656.152.88$3,679
May 201501,44755.212.96$4,277
Apr 2015581,44249.822.71$6,792
Mar 201501,34642.892.93$3,950
Feb 201501,14444.662.98$3,405
Jan 201501,44043.433.10$4,465
Dec 201401,54454.693.59$5,545
Nov 201401,49970.464.25$6,374
Oct 201401,44978.303.90$5,652
Sep 201401,24686.164.05$5,041
Aug 2014070489.394.04$2,841
Jul 2014080496.564.18$3,360
Jun 2014081298.164.74$3,846
May 2014089694.734.73$4,235
Apr 2014081995.944.81$3,939
Mar 2014075495.895.06$3,813
Feb 20142859697.406.19$6,418
Jan 2014066090.404.86$3,208
Dec 2013063791.824.35$2,774
Nov 2013065288.853.74$2,437
Oct 2013058397.423.78$2,203
Sep 201312467104.113.72$2,986
Aug 20130564104.253.52$1,987
Jul 20130552102.523.72$2,052
Jun 2013054894.403.93$2,156
May 20131250794.834.15$3,242
Apr 2013055993.964.28$2,394
Mar 2013065693.623.91$2,567
Feb 2013061091.233.42$2,086
Jan 2013064891.603.42$2,216
Dec 2012064886.773.42$2,216
Nov 2012061886.953.62$2,240
Oct 2012066089.383.40$2,244
Sep 2012062394.672.92$1,818
Aug 20121369092.662.91$3,211
Jul 2012078285.133.02$2,362
Jun 2012067479.822.52$1,698
May 2012060791.612.49$1,510
Apr 20120601101.652.00$1,200
Mar 20120671105.052.22$1,491
Feb 201229577101.102.57$4,415
Jan 2012061298.092.73$1,673
Dec 2011059496.873.24$1,924
Nov 2011058095.723.31$1,921
Oct 2011060784.983.65$2,215
Sep 2011063583.623.99$2,531
Aug 2011063583.404.15$2,635
Jul 2011063294.144.52$2,855
Jun 20111465792.904.64$4,349
May 2011060198.134.40$2,647
Apr 20110483105.964.33$2,093
Mar 20111547896.364.06$3,385
Feb 2011045485.644.18$1,898
Jan 2011052886.504.59$2,423
Dec 2010063985.734.35$2,778
Nov 2010069680.843.80$2,642
Oct 2010085878.103.51$3,011
Sep 2010065472.633.98$2,603
Aug 20101575973.684.42$4,459
Jul 2010075772.554.74$3,586
Jun 20101485770.364.91$5,193
May 201001,01171.124.24$4,282
Apr 20101496081.694.12$5,101
Mar 201001,14078.394.39$5,003
Feb 2010099973.585.44$5,437
Jan 201001,12474.365.96$6,704
Dec 200901,23871.445.48$6,789
Nov 2009093574.593.75$3,508
Oct 200901,09072.544.11$4,480
Sep 2009151,15565.543.06$4,523
Aug 200901,31467.423.22$4,229
Jul 200901,02961.133.46$3,565
Jun 20092084766.163.90$4,622
May 2009087754.743.93$3,443
Apr 20094182046.773.59$4,859
Mar 2009187742.144.06$3,602
Feb 2009080632.814.63$3,734
Jan 2009089235.865.37$4,791
Dec 2008451,02537.105.98$7,796
Nov 200801,18555.496.86$8,130
Oct 2008079475.246.92$5,496
Sep 20080928101.767.88$7,310
Aug 200801,017114.228.48$8,627
Jul 200801,076131.0811.39$12,255
Jun 200842890131.3313.03$17,115
May 2008421,003123.1711.57$16,782
Apr 200801,226110.3110.45$12,818
Mar 2008401,396101.909.66$17,567
Feb 200801,25292.538.77$10,981
Jan 200801,37290.388.21$11,258
Dec 200701,43888.337.30$10,500
Nov 200701,46691.677.29$10,690
Oct 2007411,54482.856.92$14,084
Sep 200701,51975.846.24$9,485
Aug 2007401,61569.066.39$13,079
Jul 200701,66270.906.39$10,617
Jun 200701,68362.007.55$12,704
May 2007401,76558.747.85$16,198
Apr 2007099259.617.81$7,743
Mar 2007401,29556.927.30$11,733
Feb 200701,22155.108.22$10,032
Jan 200701,43550.306.73$9,653
Dec 200601,39756.656.92$9,665
Nov 2006451,23254.207.62$11,824
Oct 200601,22154.906.01$7,343
Sep 200601,16160.085.04$5,848
Aug 200601,20068.717.34$8,808
Jul 200601,25269.376.34$7,941
Jun 2006411,23066.286.38$10,570
May 200601,40066.016.42$8,995
Apr 2006411,71764.397.36$15,278
Mar 200601,81356.707.08$12,841
Feb 200601,67057.597.75$12,944
Jan 200601,85360.598.93$16,553
Dec 200501,92554.9413.42$25,825
Nov 200502,18854.6910.59$23,167
Oct 200501,95958.3413.80$27,026
Sep 200501,98461.4512.08$23,965
Aug 200502,13661.519.80$20,926
Jul 200502,46155.697.84$19,303
Jun 200502,73152.337.38$20,158
May 200502,05645.226.65$13,675
Apr 200502,01249.207.36$14,809
Mar 200502,43650.377.15$17,429
Feb 200502,51845.226.31$15,893
Jan 200502,78743.166.32$17,620
Dec 200402,97439.866.75$20,078
Nov 200403,10445.286.33$19,650
Oct 200403,66049.706.52$23,845
Sep 200403,66843.245.28$19,381
Aug 200403,29342.375.55$18,278
Jul 200403,27038.286.08$19,895
Jun 200403,36336.106.43$21,634
May 200403,50737.486.49$22,776
Apr 200403,44634.475.86$20,188
Mar 200403,61034.365.53$19,964
Feb 200403,38532.455.51$18,650
Jan 200403,65032.036.30$22,994
Dec 200303,63030.266.30$22,875
Nov 200303,67428.804.60$16,883
Oct 200303,82528.174.76$18,206
Sep 200303,62626.314.75$17,221
Aug 200304,01529.765.13$20,596
Jul 200304,13829.415.17$21,397
Jun 200304,06928.565.98$24,345
May 200304,00126.595.97$23,897
Apr 200304,02926.675.41$21,786
Mar 200303,91131.146.10$23,842
Feb 200303,43333.487.93$27,210
Jan 200303,94330.315.58$22,010
Dec 200203,35626.914.85$16,289
Nov 200204,22924.664.14$17,495
Oct 200204,51026.464.23$19,073
Sep 200204,09527.443.64$14,886
Aug 200204,70425.963.16$14,884
Jul 200204,58124.583.06$14,026
Jun 200204,32123.733.34$14,425
May 200205,04424.663.58$18,078
Apr 200204,82523.653.51$16,947
Mar 200204,55322.003.10$14,127
Feb 200204,35518.222.38$10,346
Jan 200204,54317.172.38$10,793
Dec 200105,15616.932.36$12,191
Nov 200104,76718.072.41$11,467
Oct 200105,16019.782.53$13,049
Sep 200105,18324.262.25$11,669
Aug 200105,54024.873.05$16,915
Jul 200105,45723.933.20$17,446
Jun 200105,49924.563.82$21,029
May 200105,55425.524.31$23,923
Apr 200105,47124.685.34$29,190
Mar 200105,55524.545.38$29,866
Feb 200105,24427.755.77$30,243
Jan 200105,57427.478.40$46,815
Dec 200005,84326.889.12$53,303
Nov 200005,66732.215.66$32,064
Oct 200006,30031.235.15$32,417
Sep 200006,39431.875.19$33,162
Aug 200005,42929.644.54$24,652
Jul 200007,24428.534.09$29,626
Jun 200007,27529.304.40$31,990
May 200007,16027.263.68$26,347
Apr 200007,42324.513.12$23,130
Mar 200007,80828.422.86$22,329
Feb 200007,17327.622.73$19,557
Jan 200007,47125.272.48$18,532
Dec 199907,50324.282.42$18,185
Nov 199908,25223.192.43$20,085
Oct 199908,50420.982.80$23,843
Sep 199907,99821.752.62$20,946
Aug 199908,68919.262.88$24,986
Jul 199907,56017.892.37$17,935
Jun 199908,94315.942.36$21,124
May 199909,27615.792.32$21,530
Apr 199909,16015.102.21$20,226
Mar 1999010,13112.471.84$18,624
Feb 199909,5809.981.82$17,414
Jan 1999010,60510.381.90$20,149
Dec 1998010,5159.201.77$18,646
Nov 199808,25210.892.19$18,037
Oct 199806,71412.421.97$13,221
Sep 199808,16512.592.08$17,005
Aug 199808,83111.301.91$16,844
Jul 199808,39711.742.24$18,786
Jun 199808,59211.242.24$19,223
May 199809,04712.622.21$19,961
Apr 199808,77013.042.51$21,972
Mar 199809,33512.802.31$21,559
Feb 199808,72613.952.30$20,062
Jan 1998010,25914.702.15$22,106
Dec 1997010,74016.322.41$25,895
Nov 1997010,85118.193.09$33,511
Oct 1997012,22019.253.15$38,491
Sep 1997012,86817.742.95$38,023
Aug 1997011,94317.862.55$30,511
Jul 1997014,00617.582.25$31,471
Jun 1997013,87217.242.26$31,312
May 1997014,32818.972.31$33,076
Apr 1997013,39017.882.08$27,888
Mar 1997014,36718.951.94$27,860
Feb 1997013,18420.492.21$29,083
Jan 1997015,05023.483.54$53,272
Dec 1996015,68623.32$0
Nov 1996016,23121.97$0
Oct 1996017,02223.31$0
Sep 1996017,37022.22$0
Aug 1996018,77820.26$0
Jul 1996018,77719.55$0
Jun 1996018,71218.73$0
May 1996019,76019.43$0
Apr 1996019,38321.51$0
Mar 199606,41119.38$0

How to read this page

The arithmetic is one multiplication per stream per month. Here it is, worked, on a real row from the table above.

Dec 2016 — as filed, then multipliedworked
Condensate           104 bbl  × $ 48.76 =     $5,071
Gas                    0 Mcf  × $  3.72 =         $0

────────────────────────────────────────────────────
Month total                                   $5,071

The volumes are the state's, unchanged

Every barrel and every Mcf on this page is a number the Railroad Commission of Texas published in its monthly production query. Nothing is modelled, estimated or filled in.

The dollars are a multiplication, not a valuation

Volume × a published monthly price. It is not what the operator was paid: it takes no account of a contract, a differential, a transportation deduction, or the share any one owner holds.

Oil and gas are priced differently

Oil is a Texas realisation — the crude oil first purchase price. Gas is a benchmark, because no free Texas wellhead gas series exists at any date. The prices page publishes the difference rather than correcting it away.

A lease is not a well

The state reports oil on lease and gas on well, and this page is the lease grain. 08/G/158056 is the state's own key, not one this site invented.